Jordan Valve Mark 60 User Manual

I & M Mark 60 (1/4” - 2”)

3170 Wasson Road • Cincinnati, OH 45209 USA

Phone [phone] • Fax [phone]

[e-mail] • www.jordanvalve.com

Installation & Maintenance Instructions for

Mark 60 Sliding Gate Pressure Regulators

Warning: Jordan Valve Pressure Regulators must only be used, installed and repaired in accordance with these In­stallation & Maintenance Instructions. Observe all applicable public and company codes and regulations. In the event
of leakage or other malfunction, call a qualified service person; continued operation may cause system failure or a
general hazard. Before servicing any valve, disconnect, shut off, or bypass all pressurized fluid. Before disassembling
a valve, be sure to release all spring tension.

Please read these instructions carefully!

5. In preparing threaded pipe connections, care
should be exercised to prevent pipe-sealing com-

Your Jordan Valve product will provide you with long,
trouble-free service if it is correctly installed and main­tained. Spending a few minutes now reading these in­structions can save hours of trouble and downtime later.
When making repairs, use only genuine Jordan Valve
parts, available for immediate shipment from the factory.

pound from getting into the pipelines. Pipe-sealing
compound should be used sparingly, leaving the
two end threads clean. Jordan uses, and recom­mends, thread sealer Teflon ribbon.

6. The flow arrow on the valve body must be pointed
in the direction of flow. Ideally, the valve should be
installed in the highest horizontal line of piping to
provide drainage for inlet and outlet piping, to pre-

Ideal Installation

vent water hammer, and to obtain faster response.

7. If possible, install a relief valve downstream from

Main Steam Line

the valve. Set at 15 psi above the control point of
the valve.

8. In hot vapor lines, upstream and downstream pip-

3

4

1

1

52

By-Pass Line

1

2

4

6

R

ing near the valve should be insulated to minimize
condensation.

9. In gas service, if the control pressure (downstream)
is 25% of the inlet pressure or less, expand the
outlet piping at least one pipe size. A standard
tapered expander connected to the outlet of the
valve is recommended.

1

7

Condensate Return Line

1. Shut off Valve

2. Pipe Union

3. Strainer and Drain Valve

4. Pressure Gauge

5. Jordan Regulator

6. Relief Valve

7. Steam Trap

10. Where surges are severe, a piping accumulator is
recommended.

11. On steam control applications, install a steam trap
with sufficient capacity to drain the coil or condens­er. Be sure to have a good fall to the trap, and no
backpressure. Best control is maintained if the coil
or condenser is kept dry.

1. To protect the valve from grit, scale, thread chips
and other foreign matter, ALL pipelines and piping
components should be blown out and thoroughly
cleaned before the installation process begins.

2. Shutoff valves, pressure gauges and by-pass piping
should be installed as indicated in the Ideal Installa­tion Schematic to provide easier adjustment, opera­tion, and testing.

3. A line strainer should be installed on the inlet side
of the valve to protect it from grit, scale and other
foreign matter. A 0.033 perforated screen is usually
suitable for this purpose. Line strainers are avail­able from Jordan Valve.

4. For best control, 3’ 0” straight sections of pipe
should be installed on either side of the valve.

Start-Up

1. Fully open the outlet shut-off valve.

2. Slowly open the inlet shut-off valve.

3. Slowly open and close the outlet shut-off valve
several times. This fully strokes the valve to insure
satisfactory operation.

4. With the outlet shut-off valve open, slowly screw
down the adjusting screw until the desired pres­sure is shown on the outlet pressure gauge.

5. To change the controlled pressure, turn the adjust­ing screw clockwise to increase pressure, counter­clockwise to decrease pressure.

6. Body and cap bolts should be retightened per
torque procedures after valve reaches operating
temperature.

Maintenance

Caution: Ensure that the valve is de-pressurized be­fore loosening any fittings or joints. The following
steps are recommended before performing any main­tenance on the valve:

1. Close the inlet shut-off valve.

2. Allow pressure to bleed off through the down­stream piping. Do not attempt to reverse the flow
through the valve by bleeding pressure from the
upstream side of the valve.

3. When the pressure gauges indicate that all pres­sure has been removed from the system, close the
outlet shut-off valve. The valve may be removed
from the line and serviced.

Note: Refer to the drawing at the end of this docu­ment for description and proper orientation of parts.

Valve Seats

Disc Pin (14)

Index Pin (21)

Cap Screws (20)

Hex Nuts (2)

on the valve body. (NOTE: discs that can be rotated
180° without affecting the stroke may not have ar­rows.) Lift straight up on the disc (17). Place the
disc on the bench lapped surface facing up. Re­move the index pin (21).

It is imperative that the disc pin (14) assembly is not
rotated when disassembling, cleaning or reassem­bling, since this affects the stroke adjustment of the
valve.

4. Invert the body and lightly tap on the exterior to re­move the plate (16). Let the plate drop out into your
hand, and place it on the bench with the lapped
surface facing up. If the plate sticks lightly tap on
the back of the plate with a soft blunt object; push
the plate (16) out evenly.

5. Clean all the parts, body and cap with solvent. In­spect body and cap bores for damage. If the parts
are scarred, do not attempt to re-lap them, but re­turn them to the factory for repair or replacement.

6. The vertical sections of the disc guide (18) serve
as guides for the disc (17) while stroking. A 0.005
feeler gauge should be used to check for clearance
between this surface and the side of the disc. If the
clearance is less, clean the guide surfaces in the
disc guide with a fine file.

B. REASSEMBLY

Body (12)

Studs (2)

Valve Plate (16)

Valve Disc (17)

Disc Guide (18)

Cap (19)

A. DISASSEMBLY

Jordan Valve Sliding Gate Seats are lapped to
light band flatness. Maintaining such tolerances
is of paramount importance for your assurance of
excellent control and tight shutoff. DO NOT use
metallic objects in removing the seats. Care in
handling is important.

1. Following the Maintenance procedures to remove
the valve from line.

2. Note scribes “<” on the side of the body (12) and
cap (19). Secure the body flats in a vise. Remove
the cap bolts (20) and two nuts from the studs. Lift
the cap straight up.

3. Remove the disc guide (18) by lifting straight up –
protect the lapped surfaces on both sides of the
disc guide. Before removing, check the disc (17)
for a stamped arrow. This arrow points to the “<”

1. Lightly coat the outer ring on the unlapped side or
the plate (16) with anti-seize compound.

2. Place the plate (16) in the body, lapped surface fac­ing the cap. The index-pin hole should be on the
same side of the body as the “<” on the body. Align
the disc pin (14) so that it is centered in the body
bore and that it protrudes through the center slot in
the plate (16). Place the disc (17) on the plate (16),
engaging the disc pin (14). The arrow on the disc
(17) should point to the index-pin hole. Insert the
index-pin (21) in the hole.

3. Coat the outer ring on the side of the disc guide
without the index pin hotel, with a light coating of
anti-seize compound.

4. Place the disc guide onto the plate (16), engag­ing the index pin (19). Rotate the assembly slightly
until the slot openings in the disc are parallel to
the openings in the plate, and perpendicular to the
stem. Stroking the valve will aide in this alignment.

5. Align the “>” on the cap (19) with the “<” on the
body (12), and place the cap over the two studs in
the body.

6. Install the nuts and cap bolts (20). Tighten uni­formly. See page four for torque requirements and
tightening procedures.

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